Not too sure here but the area traveled should be the area under the graph which would be 5*3*4=60cm per second. 60 seconds in a minute so 60*60cm traveled kn a minute. Answer should be 3600cm

For 28, I said that the total force in one half of the rope is (5*0.8)+(5*10)=54. Then I said 54*2=108 since the rope must have equal tensions on both sides but I'm not too sure here. Maybe someone else can clarify here.

36- can't make head nor tail how to do this.

That's what I have done- can't say whether it's right but I hope I've helped. If Ive not explained something properly, do ask...

(Original post by ChallengeLover)
Not too sure here but the area traveled should be the area under the graph which would be 5*3*4=60cm per second. 60 seconds in a minute so 60*60cm traveled kn a minute. Answer should be 3600cm

For 28, I said that the total force in one half of the rope is (5*0.8)+(5*10)=54. Then I said 54*2=108 since the rope must have equal tensions on both sides but I'm not too sure here. Maybe someone else can clarify here.

36- can't make head nor tail how to do this.

That's what I have done- can't say whether it's right but I hope I've helped. If Ive not explained something properly, do ask...

The first one makes sense to me. I kind of just read it wrong I suppose and ignored the amplitude assuming that it was the whole wave and not a particle.

The second one I realise how you got 54. I misread that too so didn't even get that :/. Why does it need to be doubled I'm not quite clear with that?